An automatic weighing device and feeding equipment in operation

Abstract

The present application relates to the technical field of industrial raw material conveying equipment, and in particular to an automatic weighing device in operation and a feeding device. The automatic weighing device in operation is installed on a material elevator and is used to lift materials, and includes a shovel tooth and a weighing sensor; the shovel tooth is used to carry materials and is fixed on the material elevator, and the material elevator drives the lifting and lowering of the shovel tooth; the weighing sensor is screwed with a weighing bolt, and the weighing bolt extends above the shovel tooth, and the material acts on the weighing bolt to achieve the weighing of the material. The feeding device includes the above-mentioned automatic weighing device in operation, and also includes a material cart; the material cart is provided with a slot for the shovel tooth to pass through; the top surface of the slot is used to abut against the weighing sensor. The present application provides an automatic weighing device in operation and a feeding device, which can automatically weigh materials during the operation of the elevator, reduce the workload of workers, and improve the weighing accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of industrial raw material conveying equipment, and in particular to an automatic weighing device and a feeding device in operation. Background Art

[0002] When conventional aluminum centralized melting furnaces and holding furnaces are working, a material cart is often used to hold aluminum ingots, aluminum chips and other materials. The material cart is raised to a certain height by a hoist and then dumped into the melting chamber of the furnace body. The burner flame is used to melt the materials into high-temperature aluminum liquid required for casting aluminum parts.

[0003] In order to count the weight of aluminum raw materials, people often set up a platform scale or a floor scale in front of the elevator, and have the workers on duty record and count the weight of the materials, which increases the workload of the workers, indirectly causes a waste of time, and also causes omissions, over-recording, etc. As a result, the material is under- or over-added, which affects the production progress and increases the production cost. Summary of the invention

[0004] The present application provides an automatic weighing device and feeding equipment during operation, which can automatically weigh materials during the operation of the elevator, reduce the workload of workers, and improve the weighing accuracy.

[0005] On the one hand, the present application provides an automatic weighing device in operation, which adopts the following technical solution:

[0006] An automatic weighing device in operation, mounted on a material hoist and used to lift materials, and comprising shovel teeth and a weighing sensor;

[0007] The shovel teeth are used to carry materials and are fixed on a material elevator, and the material elevator drives the lifting and lowering of the shovel teeth; a sensor mounting groove is provided on the shovel teeth;

[0008] The weighing sensor is arranged in the sensor installation groove; the weighing sensor is screwed with a weighing bolt, and the weighing bolt extends above the shovel teeth. The material acts on the weighing bolt to achieve the weighing of the material.

[0009] By adopting the above technical solution, when the material is placed on the shovel teeth, the force of the material will be transmitted to the weighing sensor through the weighing bolt 3, thereby realizing automatic weighing of the material.

[0010] Preferably, it also includes a PLC processor; the PLC processor is communicatively connected to the weighing sensor and is used to receive and store weighing data;

[0011] The weighing sensors are provided in plurality and are all connected to the PLC processor for communication. The PLC processor reads a plurality of sets of weighing data and calculates and obtains an average value A thereof;

[0012] The total weight of the material is equal to the number of weighing sensors multiplied by the average value A.

[0013] By adopting the above technical solution, the OLC processor can realize the reception and storage of weighing data. Moreover, by obtaining multiple sets of weighing data and calculating the average value of these data to measure the total weight of the material, the measurement error can be effectively reduced and the accuracy can be improved.

[0014] On the other hand, the present application provides a feeding device, which adopts the following technical solution:

[0015] A feeding device, comprising the above-mentioned automatic weighing device in operation, and also comprising a feeding vehicle;

[0016] The material cart is provided with a slot for the shovel teeth to pass through; the top surface of the slot is used to abut against the weighing sensor.

[0017] By adopting the above technical solution, the material cart can carry materials and be placed on the shovel teeth through the slots provided thereon, which is convenient for the transportation of materials and also convenient for the weighing of materials.

[0018] Preferably, the material cart comprises a body and a hopper; the slot is provided on the body; the hopper is arranged in the body, the hopper is slidably connected to the body and can be vertically moved to the outside of the body; the hopper is provided with a supporting portion abutting against the shovel teeth;

[0019] The shovel teeth can drive the hopper to move upward relative to the vehicle body.

[0020] By adopting the above technical solution, the hopper is driven to move upward relative to the vehicle body, so that only the hopper and its internal logistics are weighed, and the weight of the vehicle body will not act on the weighing sensor, thereby avoiding possible changes in the vehicle body weight that may interfere with the weighing data.

[0021] Preferably, the shovel tooth comprises a support arm and a top block, the sensor mounting groove is arranged at the top of the support arm, the top block is arranged inside the sensor mounting groove, and the sensor is mounted on the top block;

[0022] The support arm is also provided with a driving mechanism for driving the top block to rise to the top of the support arm and to descend to the inside of the sensor installation groove.

[0023] By adopting the above technical solution, the rise and fall of the top block is controlled by the driving mechanism, so that the weighing bolt is controlled to rise above the support arm for weighing the material, or to fall into the sensor mounting slot so that the support arm can support the material cart, thereby ensuring the stability of the material cart.

[0024] Preferably, the driving mechanism includes a driving rod and a driving block; the driving block is provided with a guiding inclined surface, and the top block is provided with a guiding portion cooperating with the guiding inclined surface; the driving block is arranged inside the support arm and is slidably connected to the support arm, and drives the top block to move up and down by lateral sliding; the driving rod is connected to the driving block and extends to the outside of the support arm.

[0025] By adopting the above technical solution, the driving rod can control the lateral movement of the driving block, and then drive the top block to rise and fall through the driving block, thereby realizing the rise and fall of the weighing sensor, and the driving block can provide sufficient supporting force for the top block, thereby ensuring normal weighing operation of the material.

[0026] Preferably, the driving rod is vertically arranged and penetrates the support arm; a pushing portion is arranged on the driving rod, and the pushing portion abuts against the driving block, and when the driving rod moves vertically, the pushing portion controls the driving block to move horizontally;

[0027] The vehicle body is provided with a limiting portion abutting against the top of the driving rod, the driving rod is sleeved with a return spring, and the two ends of the return spring are respectively connected to the support arm and the driving rod.

[0028] By adopting the above technical solution, when the shovel teeth continue to rise, the body will act on the driving rod, causing the driving rod to abut against the limit part. As the shovel teeth continue to rise, under the gravity of the body, the driving rod will drop and control the top block to drop through the driving block, and the weighing bolt will drop to the inside of the sensor installation slot, so that the weight of the hopper and the material will all act on the support arm, avoiding long-term pressure on the weighing sensor, thereby increasing the life of the weighing sensor. At the same time, driving the material cart up and down by the support arm can also effectively improve the stability of the material cart.

[0029] Preferably, a limiting plate is further provided on the hopper, and the limiting plate is located at the lower side of the limiting portion; a limiting hole for the driving rod to pass through is opened on the limiting plate.

[0030] By adopting the above technical solution, the bucket can be fixed on the shovel teeth through the cooperation of the driving rod and the limiting hole, thereby improving the stability of the bucket during the loading process.

[0031] Preferably, the limiting portion is provided with a blind hole which is plug-fitted with the end of the driving rod.

[0032] By adopting the above technical solution, the blind hole and the end of the driving rod can be used to keep the vehicle body and the shovel teeth relatively fixed, and can cooperate with the limit plate, thereby effectively improving the overall stability of the material vehicle, thereby ensuring stability during weighing and loading.

[0033] Preferably, two sets of driving mechanisms are correspondingly arranged for one top block, and the two sets of driving mechanisms are symmetrically arranged on both sides of the top block.

[0034] By adopting the above technical solution, a top block is driven to move by two sets of driving mechanisms, thereby ensuring the smoothness of the top block movement process.

[0035] In summary, the present invention includes at least one of the following beneficial technical effects:

[0036] 1. This application adopts a combination of shovel teeth and weighing sensors. When the material is placed on the shovel teeth, the force of the material will be transmitted to the weighing sensor through the weighing bolt 3, thereby realizing automatic weighing of the material. In order to ensure the balance of the material and thus the accuracy of the measurement, two shovel teeth are provided and distributed in parallel. The material can be placed on the material cart, and the material cart is mounted on the shovel teeth and weighed by the weighing sensor;

[0037] 2. In order to realize the automatic calculation and storage of material weight data, the weighing device also includes a PLC processor. The PLC processor is connected to the weighing sensor for receiving and storing weighing data. During the material weighing process, the PLC processor reads the weighing data of the four weighing sensors, calculates the average value A, and then calculates the total weight of the material according to the formula "total weight of the material = number of weighing sensors multiplied by the average value A";

[0038] 3. The material cart of the present application is composed of a vehicle body and a hopper. The hopper and the vehicle body are connected by a sliding connection, so that the hopper can move vertically and can be moved to the outside of the vehicle body when necessary. In addition, a supporting part that abuts against the shovel teeth is provided on the hopper. When the shovel teeth rise, the supporting part abuts against the weighing bolts and can drive the hopper to move upward relative to the vehicle body, so that only the hopper and its internal logistics are weighed, and the weight of the vehicle body will not act on the weighing sensor, avoiding possible changes in the vehicle body weight and thus interfering with the weighing data;

[0039] 4. During the weighing and loading process, the material cart of the present application can control the lifting and lowering of the weighing sensor and the weighing bolt through the driving mechanism. During the weighing process, the bolt rises to the top of the support arm to achieve the weighing of the hopper and the material; and during the lifting process, the weighing bolt drops to the inside of the sensor installation slot so that the weight of the hopper and the material is fully applied to the support arm, avoiding long-term pressure on the weighing sensor, thereby prolonging the life of the weighing sensor;

[0040] 5. This application can effectively realize the connection between the shovel teeth and the material cart through the setting of blind holes and limit holes, thereby ensuring the stability of the material cart and materials during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic diagram of the overall structure of the automatic weighing device in operation in Example 1 of the present application;

[0042] Figure 2 It is a schematic diagram of the coordination relationship between the automatic weighing device and the material cart in operation in Example 1 of the present application;

[0043] Figure 3 It is a structural schematic diagram of the feeding equipment in Example 2 of the present application;

[0044] Figure 4 It is a structural schematic diagram of the feeding equipment in Example 3 of the present application;

[0045] Figure 5 It is a cross-sectional view of the loading device in Example 3 of the present application and is mainly used to show the interaction between the driving mechanism and the material cart.

[0046] Markings in the attached drawings: 1. shovel teeth; 11. support arm; 12. top block; 13. sensor mounting slot; 14. slide slot; 2. weighing sensor; 3. weighing bolt; 4. material cart; 41. car body; 411. slot; 412. limit part; 42. hopper; 421. supporting part; 422. limit plate; 5. driving mechanism; 51. driving rod; 511. pushing part; 52. driving block; 521. abutting part; 53. reset spring. DETAILED DESCRIPTION

[0047] The following is combined with Figure 1-5 The present invention is described in further detail. Example

[0048] This embodiment discloses an automatic weighing device in operation, referring to Figure 1 , including a shovel tooth 1 and a weighing sensor 2. The shovel tooth 1 is used to carry materials and is fixed on the material elevator. The material elevator drives it to rise and fall, thereby driving the materials to rise and fall. A sensor mounting groove 13 is provided on the shovel tooth 1, and the weighing sensor 2 is provided in the groove. The weighing sensor 2 is screwed with a weighing bolt 3, which extends to the top of the shovel tooth 1. When the material is placed on the shovel tooth 1, the force of the material will be transmitted to the weighing sensor 2 through the weighing bolt 3, thereby realizing automatic weighing of the material.

[0049] Reference Figure 1 and Figure 2 In the embodiment of the present application, in order to ensure the balance of the material and thus the accuracy of the measurement, two shovel teeth 1 are provided and distributed in parallel. The material can be placed on a material cart 4, and the material cart 4 is mounted on the shovel teeth 1 and weighed by a weighing sensor 2.

[0050] There are multiple weighing sensors 2, preferably four in the embodiment of the present application, two are arranged on one shovel tooth 1, and each weighing sensor 2 is configured with a weighing bolt. Therefore, the material is supported by four weighing bolts, which can ensure the stability of the material and improve the accuracy of the measurement.

[0051] Furthermore, in order to realize automatic calculation and storage of material weight data, the weighing device also includes a PLC processor. The PLC processor is connected to the weighing sensor 2 for receiving and storing weighing data. During the material weighing process, the PLC processor reads the weighing data of the four weighing sensors 2, calculates the average value A, and then calculates the total weight of the material according to the formula "total weight of the material = the number of weighing sensors 2 multiplied by the average value A".

[0052] In order to further ensure accurate weighing during operation, the PLC program sets a pause of several seconds when the shovel tooth 1 drives the material to rise. The running speed of the shovel tooth 1 and the material is zero at this time. The weight at this time is read out and used as the weighing data. Example

[0053] This embodiment discloses a feeding device, referring to Figure 3 , including the automatic weighing device in operation in the aforementioned embodiment, and the material cart 4. In addition, the embodiment of the present application makes a detailed improvement on the installation relationship between the material cart 4 and the shovel tooth 1.

[0054] Specifically, the material cart 4 has a hopper 42 built in, and a slot 411 for the shovel teeth 1 to pass through is provided on the bottom side of the material cart 4. During the loading process, after the material cart 4 is fully loaded with materials, the shovel teeth 1 will pass through the slot 411 of the material cart 4, and lift the material cart 4 and the materials thereon together. During the lifting process, since the top surface of the slot 411 abuts against the weighing sensor 2, the material cart 4 and the materials are weighed, and the weight of the materials can be obtained by removing the weight of the material cart 4. Example

[0055] This embodiment discloses a feeding device, which is different from Embodiment 2 in that the structure of the material cart and the shovel teeth is further improved in this embodiment of the application.

[0056] Reference Figure 4 and Figure 5 The material cart 4 specifically includes a car body 41 and a hopper 42 , a slot 411 is opened on the car body 41 , and the hopper 42 is arranged in the car body 41 .

[0057] The hopper 42 is connected to the vehicle body 41 by sliding, so that the hopper 42 can move vertically and can be moved to the outside of the vehicle body 41 when necessary. In addition, a supporting portion 421 is provided on the hopper 42 to abut against the shovel teeth 1. When the shovel teeth 1 rise, the supporting portion 421 will abut against the weighing bolts and can drive the hopper 42 to move upward relative to the vehicle body 41, so that only the hopper 42 and its internal logistics are weighed, and the weight of the vehicle body 41 will not act on the weighing sensor 2, avoiding possible changes in the weight of the vehicle body 41 and thus interfering with the weighing data.

[0058] In order to achieve the above effect, in the initial state, the supporting part 421 is in the slot 411, and when the shovel tooth 1 enters the slot 411 and rises, it will first abut against the supporting part 421, and will drive the hopper 42 to rise through the supporting part 421. Before the shovel tooth 1 contacts the top surface of the slot 411, it will pause for a few seconds to complete the weighing of the hopper 42 and the material inside. After the weighing is completed, the shovel tooth 1 continues to rise and abuts against the top surface of the slot 411, thereby driving the vehicle body 41, the hopper 42 and the material to rise together and complete the material delivery.

[0059] Further, in the embodiment of the present application, the shovel tooth 1 includes a support arm 11, and a sensor mounting groove 13 is located at the top of the support arm 11 and extends downward to the inside of the support arm 11. A top block 12 is also provided inside the sensor mounting groove 13, and the top block 12 can move up and down in the sensor mounting groove 13. The weighing sensor 2 is fixed on the top block 12 to achieve up and down movement.

[0060] In addition, a driving mechanism 5 is also provided on the support arm 11, which controls the rise and fall of the top block 12 through the driving mechanism 5, thereby controlling the weighing bolt to rise above the support arm 11 for weighing the material, or to fall into the sensor mounting groove 13 so that the support arm 11 can support the material cart 4, thereby ensuring the stability of the material cart 4.

[0061] Reference Figure 5 Specifically, the driving mechanism 5 includes a driving rod 51 and a driving block 52. A slide groove 14 for placing the driving block 52 is provided inside the support arm 11. The slide groove 14 is located on the horizontal side of the sensor mounting groove 13 and is connected to the sensor mounting groove 13. The driving block 52 can move to the bottom of the top block 12 through the slide groove 14. The side of the driving block 52 facing the top block 12 is an inclined surface, which is a guiding inclined surface. The side of the top block 12 facing the driving block 52 is provided with an inclined guiding part, and the guiding part abuts against the guiding inclined surface. Therefore, the up and down movement of the top block 12 can be achieved by the lateral movement of the driving block 52.

[0062] Furthermore, the driving rod 51 is vertically arranged and penetrates the support arm 11, and the driving rod 51 can slide vertically. The upper end of the driving rod 51 extends to the upper side of the support arm 11, and is used to abut against the limit portion 412 provided on the top wall of the slot 411. The lower end of the driving rod 51 extends to the inside of the slide slot 14 and is provided with a pushing portion 511, and the driving block 52 is provided with an abutting block that contacts the pushing portion 511. When the driving rod 51 moves downward, the pushing portion 511 pushes the driving block 52 to move away from the top block 12 through the abutting block, so that the top block 12 moves downward.

[0063] As a preferred implementation of the embodiment of the present application, the driving rod 51 can also be a threaded rod and threadedly connected to the support arm 11 and rotatably connected to the driving block 52. By rotating the driving rod 51, the lateral movement of the driving block 52 is controlled, thereby controlling the rise of the top block 12.

[0064] The driving rod 51 is also provided with a return spring 53, and the two ends of the return spring 53 are respectively fixedly connected to the driving rod 51 and the support arm 11, thereby providing a driving force for the rising of the driving rod 51. When the driving rod 51 rises, the pushing portion 511 pushes the driving block 52 to move toward the direction close to the top block 12 through the abutting portion 521, thereby controlling the top block 12 to rise.

[0065] In addition, in the embodiment of the present application, the push portion 511 can be a pulley, the abutment portion 521 is set to be an inclined hole, and the push portion 511 is located in the inclined hole, and the pulley cooperates with the inclined hole to improve the stability of the operation of the driving mechanism 5. In addition, the driving rod 51 can limit the lateral movement of the driving block 52. When the driving rod 51 remains fixed, the driving block 52 will also remain fixed, thereby ensuring the stability of the top block 12 and the weighing sensor 2.

[0066] In the embodiment of the present application, during the weighing process, after the shovel tooth 1 is inserted into the slot 411, the top of the driving rod 51 is located above the support arm 11, and the top block 12 is at the highest position, so that the weighing bolt is above the support arm 11. When the shovel tooth 1 rises, the weighing bolt first abuts against the supporting portion 421 of the hopper 42 and drives the hopper 42 to rise, so as to achieve weighing of the hopper 42 and the material.

[0067] After weighing, the shovel teeth 1 continue to rise, and then the vehicle body 41 will act on the driving rod 51, so that the driving rod 51 abuts against the limit portion 412. As the shovel teeth 1 continue to rise, under the gravity of the vehicle body 41, the driving rod 51 will drop and control the top block 12 to drop through the driving block 52, and the weighing bolt will drop to the inside of the sensor installation slot 13, so that the weight of the hopper 42 and the material will all act on the support arm 11, avoiding long-term pressure on the weighing sensor 2, so as to increase the life of the weighing sensor 2. At the same time, the support arm 11 drives the material cart 4 to rise and fall, which can also effectively improve the stability of the material cart 4.

[0068] When the shovel teeth 1 are out of contact with the trolley 4, the driving rod 51 rises under the action of the return spring 53, thereby raising the top block 12 and the weighing bolt through the driving block 52 to facilitate the next weighing work.

[0069] In order to improve the smoothness of the lifting and lowering of the top block 12 , two sets of driving mechanisms 5 are correspondingly arranged for one top block 12 , and the two sets of driving mechanisms 5 are symmetrically arranged on both sides of the top block 12 to ensure the uniformity of the force applied to the top block 12 .

[0070] Furthermore, a blind hole is provided on the limiting portion 412 to be plugged into the end of the driving rod 51, and the cooperation between the blind hole and the driving rod 51 can improve the stability of the vehicle body 41. A limiting plate 422 is also provided on the hopper 42, and the limiting plate 422 is located at the lower side of the limiting portion 412, and a limiting hole is provided on the limiting plate 422, and the driving rod 51 can pass through the limiting hole to further fix the hopper 42.

[0071] Therefore, by setting the blind hole and the limit hole, the connection between the shovel tooth 1 and the material cart 4 can be effectively achieved, thereby ensuring the stability of the material cart 4 and the material during the lifting process.

[0072] Since the material needs to be dumped during the loading process, in order to ensure the stable connection between the hopper 42 and the vehicle body 41, a limiting component for the hopper 42 is provided on the vehicle body 41, thereby preventing the hopper 42 from accidentally falling, thereby ensuring the smooth progress of the loading process. The specific structural form of the limiting component is not limited, as long as it can prevent the hopper 42 from falling and ensure that the hopper 42 has sufficient stability during operation.

[0073] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding device, characterized in that: The invention comprises an automatic weighing device during operation; the automatic weighing device during operation is installed on a material hoist and is used to lift materials, and comprises a shovel tooth (1) and a weighing sensor (2); The shovel teeth (1) are used to carry materials and are fixed on a material elevator, and the material elevator drives the shovel teeth (1) to rise and fall; the shovel teeth (1) are provided with sensor mounting grooves (13); The weighing sensor (2) is arranged in the sensor installation groove (13); the weighing sensor (2) is screwed with a weighing bolt (3), and the weighing bolt (3) extends to the top of the shovel tooth (1), and the material acts on the weighing bolt (3) to achieve the weighing of the material; It also includes a PLC processor; the PLC processor is communicatively connected to the weighing sensor (2) and is used to receive and store weighing data; The weighing sensors (2) are provided in plurality and are all connected to the PLC processor for communication. The PLC processor reads a plurality of sets of weighing data and calculates an average value A thereof. The total weight of the material is equal to the number of weighing sensors (2) multiplied by the average value A. Also includes a skip (4); The material cart (4) is provided with a slot (411) for the shovel teeth (1) to pass through; The material cart (4) comprises a vehicle body (41) and a hopper (42); the slot (411) is provided on the vehicle body (41); the hopper (42) is arranged in the vehicle body (41), the hopper (42) is slidably connected to the vehicle body (41) and can be moved vertically to the outside of the vehicle body (41); the hopper (42) is provided with a supporting portion (421) abutting against a weighing bolt (3); The shovel teeth (1) can drive the hopper (42) to move upward relative to the vehicle body (41); The shovel tooth (1) comprises a support arm (11) and a top block (12), the sensor mounting groove (13) is arranged at the top of the support arm (11), the top block (12) is arranged inside the sensor mounting groove (13), and the weighing sensor (2) is mounted on the top block (12); The support arm (11) is also provided with a driving mechanism (5) for driving the top block (12) to rise to above the support arm (11) and to descend to the inside of the sensor installation groove (13).

2. The feeding device according to claim 1, characterized in that: The driving mechanism (5) comprises a driving rod (51) and a driving block (52); the driving block (52) is provided with a guiding inclined surface, the top block (12) is provided with a guiding portion cooperating with the guiding inclined surface, the driving block (52) is arranged inside the support arm (11) and is slidably connected to the support arm (11), and drives the top block (12) to move up and down by lateral sliding; the driving rod (51) is connected to the driving block (52) and extends to the outside of the support arm (11).

3. The feeding device according to claim 2, characterized in that: The driving rod (51) is vertically arranged and penetrates the support arm (11); a pushing portion (511) is arranged on the driving rod (51), and the pushing portion (511) abuts against the driving block (52); when the driving rod (51) moves vertically, the pushing portion (511) controls the driving block (52) to move horizontally; The vehicle body (41) is provided with a limiting portion (412) abutting against the top of the driving rod (51), the driving rod (51) is sleeved with a return spring (53), and the two ends of the return spring (53) are respectively connected to the support arm (11) and the driving rod (51).

4. The feeding device according to claim 3, characterized in that: The hopper (42) is also provided with a limit plate (422), and the limit plate (422) is located at the lower side of the limit portion (412); the limit plate (422) is provided with a limit hole for the driving rod (51) to pass through.

5. The feeding device according to claim 4, characterized in that: The limiting portion (412) is provided with a blind hole which is plug-fitted with the end of the driving rod (51).

6. The feeding device according to claim 2, characterized in that: Two sets of driving mechanisms (5) are correspondingly arranged for one top block (12), and the two sets of driving mechanisms (5) are symmetrically arranged on both sides of the top block (12).

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